Fthe equation of a circle is (x + 4)2 + (y - 6)2 = 25, its radius is 5

Irene bought 3 yards of fabric and a spool of thread for $28.10. if the spool of thread cost $1.25, how much did the fabric cost per yard?

1. are the triangles similar and if so why? what is the value of x? show your work.

If a and −a are numbers on the number line, which expression must give the distance between them? a) 0 b) a c) |2a| d) |a|